Machine for making pastry shells.



i.. C.. SHAW.

MACHINE FOR MAKING PASVTRY SHELLS. APPLICATlQN FILED 11111139, 1913. ,RENEWED MAY 19.1915.

1,15152591 Patented Aug. 24,1915.

4 SHEETS-SHEET l.

Wi/humaan L.- c. SHARP. MACHINE FOR MAKING PAsTRY sHELLs. 'APPLICATION FILED JUNE 9. 1913. RENEW-ED MAY 19,1915.

l15,29 PatentedAug. A24, 1915.

i w '6. Mw

' L. c. SHARP. MAcHmE FOR MAKING PASRMSHELLS. APPLICATION FILED'I1JNE9. 1913.

RENEWED 11111119.1915.

Juve/14139@ L. C. SHARP.

MACHINE FOR MAKING PASTRY SHELLS.

nAPPucATloN FILED 1uNE9, 1913. RENFWED -MAY 19.1915.

Patented Aug. ,24, 1915.`

l 4 SHEETS-SHEET 4.

man c. SHARP, or PLATTsMo'TH, NEBRASKA.

MACHINE FOR'MAKING PASTRY SHELLS. l

annees.

. Specification of'Letters Patent.

Patented Aug. 2a, 1915..

Application-Bled Jfune 9, 19.13, Serial No. 772,555. Renewed May 19, 1915. Serial No. 29,216.

-same in the following" specification, illustrated by the accompanying drawings.

My invention relates in general to a class of machines for molding and baking pastry of various kinds, vwhich includes ice cream cone machines, so-called, in which pairs of coacting dies mold a plastic batter into the form of hollow cone-shaped receptacles for icecream, and retain the batter in that form while baking. An illustrative example of machines of this type, and 'of their general mode of operation, is found in the application of Villiam J Rumple, No:

655,497 which was filed in the United States Patent Oliice, October 191911, for a patent for improvements in machines for making pastry.

It is the object of the invention to'increase the Yetliciency of machines of this kind; to operate the male dies or upper molds thereof by positive movementsin a superior manner; to improve the distribution' of the batter to the lower molds; to control and economize the distribution of baking heat to the upper molds; to prevent the support of the upper molds fromv becoming ldistorted by the heat of repeated bakings; to render the lower molds easily removable from the machine, and easily replaced, when desired, by other molds, of the same or different patterns; to provide for the escape of steam from between the coacting molds Whenever'- baking begins; to indicate to the operator the expiration of predetermined periods allowed .for baking the pastry; and in gen-- eralto produce superior machines for making pastry shells.

To accomplish these results, I construct the lower molds of my improved pastry machine independently of the ovens in which they are seated, and fasten them therein separately; cause the frame that carries the upper molds to be raised and lowered by racks and pinions, moving in unison; supply batter to the lower molds through a tubular faucet leading from a movable batter tank; heat the upper molds byconduction from their heated Shanks; insulate the same from their supports; provide yielding and resilient means for locking the male and the female molds together; and operate, by the movement of these' molds, a signal to indicate the expiration of the times prescribed for baking.

The accompanying drawings show the best manner in which I have contemplated applying the principles of the invention; yet the latter is not restricted to any specie constructionor arrangement of arts, excepting aslimitations of that kind are either expressed or necessarily implied in the subjoined claims.

In these drawings Figures l and 2 are respectively a side elevation and a front elevation of an ice cream cone machine constructed in accordance with these principles; and the remaining figures are details. Fig. 3 is a plan of one of the upper molds fastened to thel frame by which they are carried. Fig. 4: is a sectional side elevation of the same, together with a cap andl heating devices for the upperA mold. Figs. 5 andl 6 are respectively a plan and a sectional elevation of a single upper mold having a modified form -of shank and of heating devices. Fig. 7 is a side elevation of an upper part of the same machine, partly in section on the section line in Fig. 2. Fig. 8 is a vertical section of a single oven section and a single mold section therein. Fig. 9 is an axial section of the tubular faucet, and modified attachments of the tubular faucet, which leads from the batter tank. Fig. 10 is a central vertical section of an upper mold having heating devices of a modified type. Fig. 11 is a side elevation of the same machine having the molds and cores locked vtogether in baking position. Fig. 12 is a detailed front elevation of a portion of the means for locking the dies.

In this illustrative machine, the lower molds and the upper molds are mounted respectively on the main frame 1 and the vertically reciprocable frame 2. The main frame comprises the base denoted by the same numeral 1 the upright tubular posts 3, the brackets 4:, and 5 and 23, projecting from those posts, and the cross-piece 30 by which theposts are connected. The reciprocable frame 2 comprises the duplicate rackbars 6, which work vertically in the by means of the crank 7 of thel rockshaft 8,

which isv journaled in the brackets, 4 and carries the piions 9 meshing with the racks,

6, The counter weight-87, vsuspended by 5 vthe rope 88 running in the grooved pulley 89 -keyed to this rockshaft, facilitates the movement of this frame.

The lower molds are conical metallic shells split axially. into sections, or dupli 10 cate half molds, denoted by the same numeral 1 0, and removably seated in the oven 11. This oven is a rectangular metallic shell, split in a vertical/plane into sepa'- rable duplicate and integrally formed sections, or half ovens, denoted by the samel numeral 11. Each of these oven sections is.

a metallic shell, of general rectangular form, comprising the horizontal top andl bottom plates 50, the vertical end walls 51,

the lower inner wall 52, the upper outer wall 53, the Vlower draft opening 15 under the wall 53, and the upper draft openings 54 through that wall.

In the lower part of each of the oven sections, and opposite the draft opening 15, is xed longitudinally a horizontal gas-pipe 16,- having numerous ports, or burners .17, for discharging fiame into the oven. In the same oven sections, and in the sockets 75-and 30. 7 6 which are formed respectively in the top plates 50 and the innerwalls 52 thereof, the

mold sections 10 arejseated in the registering jpositions indicated. In these positions they are removably secured by the screws 12 insertedthrough the walls53 and through the internal bosses`13, and taking into the abutl ting bosses 14 formed on kthe backs of the molds'ections. These o ve'n sections are slidably mountedin upright and mutually' reg- 40 istering positions upon the horizontal tworail track which is formed by the alining top surfaces of the brackets 4.

For the purpose of operatively moving the .rmutually registering oven' sections 1l, with 4 5 mntained mold sections 10, to and from each other on this track, the oven sections are provided respectively and 'at each end with the horizontal arms 18, which are reciprocable longitudinally in the keepers .19

on the posts 3, and these arms are attached by the connecting rods -20 to the crank-pins of the double cranks 21 on the rockshaft 22,

which has bearings in the brackets 23, .and is worked by the lever 24.

For the purpose of locking the registering i' oven sections together when slidden into vmutual contact by manipulation of this le-x ver, thecrank disks 21 are providedwith peripheral -ratchet pawls 255i F or the purpose of clamping together the registering sections of the oven, as well as the molds contained therein, 'the entire oven s is provided with a central transverse vertically prolate perforation 26, occupied bythe notches and with thehorizontalfrockarm 27 and 'this rockarim i whichfis jo'urnaled in the crosspiece 30, is

provided withf a lever@farml `v2 8 and-carries 26 and havingjbeyeled inner faces'asfshowh in F1g.7. lhese buttons engage the @Yen two Xed buttons 29, narrower thanthe holes sectionsexternally' and pinch-them together,

or disengage the same, according to gula-r positionvgiv'en to the 'rockarmby I lever arm28. Thev upper molds 31,in their preferred form, shown in detailin Figf 4, aresoli'd metallic cones, pointing downward andp'rovided each with-a peripheral.,shoulderpiece 32, and with a chambered shank?A extending 3,3 occupies w itlioutfv ,contact'jajhole 36 piece 32, is'fastened to the same'lneadpiece by the screws 34, but is insulated therefrom by theinterposed layer of asbestos, or the like,

A35, to prevent, the loss of heat from the mold, by conduction. -f On the'j underside of the headpiece 2 are formed the descendingarms,

or branches, 37. These have respectivelyA the vertical sides 38, .facing toward* each shown inFig. 7, andare adapted td" c'lasp 'the ovenll and to press the oven sections tof gether :when'ever theupper molds are'jlow1 eredinto positionin the lower molds. "Each of the upper.molds is separately heated by conduction from Aits ,shank,:'gwhich isfitself heated by a Bumsenburner."`

upward from theshoulderpiece ladfconsistother, vand thebeveled free ends 39 --inclined downwardly f away froml each othenf: yas' In-its preferred fo thelshank by the numeralg'in Fig. l4 ishollow-' and., has peripheral"pip'ngsl denoted,bythejsame]- whichis carried-bythe'head-piece'2 is l immediately connected with the burners.

Gas from the same source isl supplied tc''fthe heater pipe 1 6 by the pipe"64. '1 0 retainl the shank 33, `as shown in the same' ig; 4.

A different form of shank'for heatingythe upper mold -is illustrated in Figs. 5 and 6,

and comprises the `cylindrical axial. core 444,

`heat of the burner 40, a metallic-ca 43, cen trally perforated to admit'the nozz e of'this burner, may vbe ,placed on the top yof the` and the ineompletely encircling'wall :145,

'forming' with that c'ore an intermediate annular chamber 46 into which ythefjetA from the burner 40' is discharged in a horizontal directionapproximatelytangential to the core.' Yet anothe'ri form of shank for thev- 'same purpose is shown in Fig. 10, comprising an upwardly projecting solid axial core .-...having the horizontal tubular faucet 49.

This tank is open at the top` to receive the batter, is mounted movably on the bracket 5 and is adapted to' rotate about its central vertical axis. The faucet comprises two coaxial pipes, namely, the loutside pipe, which is denoted by the same numeral 49, and the inside pipe 55, occupying theentire length of thepipe 49. The pipe 49 projects radially from the tank and has the terminal flanged collar 56. It also has in its underside a number of downwardly opening ports 65, which are adapted to register respectively and co-aXially with the lower molds. The pipe 55has the, similarly positioned ports 66, registering with the ports 65,' and constitutes a tubular valve and batter pipe.

It has also the terminal cap 67 normally contacting with the flanged collar 56, but is easily removable from the pipe 49 for'cleaning. v 4 The cap 67 has a radially .directed lever arm 57 connected by the link 58 with the similar rock-'arm 59, which is carried by the rockshaft 60; the latter having the lever handle 61, and lhaving bearings both in oppositewalls of the tank, and in the spacingarm 62 ofthe collar 56. In the modified' form shown in Fig. 9,. the cap 67 carries a hook 68 which is adapted to en'gage the collar 56 and thereby to hold the collar 56 and the cap 67 in contactwith each other. By

this faucet the discharge-of the batter into the lower molds is effected in close proximity thereto, and the drip therefrom, occurring when that discharge is stopped, is reduced to a minimum. The chute 69 is locatejd under the ovens, and attached tothe brackets 4; while the endless conveyer 70 runs below 'the end of the chute. The timing signal shown in Fig. 1, `and mounted on one of the posts 3, comprises the hammer 71, the gong 72, the clock or other operating mechanism 73, and the controlling lever 74, which is.

positioned in the path of o'ne of the rackbars 6. It is silent when this lever is undisturbed. butis -sounded whenever this lever, having been displaced by the descending rackbar, has remained so displaced during the predetermined period of time necessaryfor a single baking.

Means for lockingthe male and the female dies yieldingly and resiliently together -are shown in Fi s. 1, 2 and 12, and comprise the bent lever 7 pivoted to one of the posts 3 by the pin 90 and normally occupying, when not in use, the position shown, the pin 78 projecting from this lever and rotarily movable therein, the ring 91' formed on' the free endlof this pin, the shaft 79 slidable in this ring, the stop nut 92 on one end of this shaft, the shoe 81 vformed on the other end of the same shaft and movable into and out of the path of the crank 7, `the angular slot 82 formed in this shoe, the guiding stud 83 projecting from the post 3 and working in this slot, and the spring 84 encircling the shaft v79 and resiliently forcing the shoe 81 from the ring 91.

The machine so constructed isobviously adapted to enlargement by 4increasing the number of moldsand ovens.

' In using this machine, the operator, by turning the crank 7, raises the frame 2 to the position shown in Figs. l and 2; then by depressing the lever 24 he slides the oven sections together in the position shown in Fig. 1, in whichposition they are locked by the action of the ratchet and pawl 25; then by v-turning the hand lever 28 he further/ clamps and buttons together the entire oven,

including the mold sections, which are seat-J `ports 65 of thefaucet 49 are brought into vertical axial registration with the lower' molds respectively; then imparting a slight lever` 61, he opens the ports 65, permitting a suitable supply of batter from the tank 48 to drop simultaneouslyinto the several lower molds; then by,a reverse movement of the lever 61 he closes the ports 65 then he moves the batter tankso as to carry the faucet 49 aside from the path of the upper molds; meanwhile'by lighting all the burners 40 and 17 he heats all the molds, male and female; then by a reverse movementof the crank 7'he lowers the upper molds into the batter in the registering lower molds, where they are stoppedin the positions shown' in Fig. 7 by the shoulderpieces 32, contacting with tops of the lower molds; thereby he causes the arms 37 to hug and hold the-sides of the oven 11; by the same act he causes the batter in 'the lower molds to be molded into the prescribed conical form, and by the same act' causes the rackbar 6 to displace the controlling lever 74 of the alarm; then byhand he depresscs the lever 7 7 against the stop pin 85 thereby carrying the pin 78 past the dead center between the pin 90 ,and the shoe 81 and moving that shoe outward into locking contact with the crank 7, which is locked thereby infthe position shownyby thus locking the male and the female molds resiliently together he permits them to sep-a rate elastically from each other a short dis .tance for the escape of steam from the batrotary lmovement to the-valve 55 by the hand and lower molds to bake until the gong is struckl by the hammer 72; then by a reverse movement of the lever 77 he releases l the upper-and the lower molds from each` other; then he withdraws the'upper molds 4from the lower molds by raising the frame chute 69 and are thereby delivered to the 2 in the manner above prescribed; 'then he releases the oven from the grasp of the buttons 29 by a reverse movement ofthe hand lever 28, and separates the oven sections, as Well as the mold sections, from each y other by a reverse movement of thecrank 7 whereupon the finished vcones drop into the conveyer 70.

I claim as my invention-" l I l. A machine for making pastry, comprising separable .oven sections, separable mold sections seated removably in the oven sections respectively, a track supporting the oven sections, and means for moving the oven sections' toward andfrom eachother on the track.v i

`2. A machine for making pastry, comprising a pair of mutually'registering/oven sections, a plurality-'of mutually registering vmold sections, formed separately from the -oven sections and seated therein, a support for'the oven sections, means forr moving the oven sectlons toward and `from each other on the support, and a means for locking the ing 'a pair of mutually registering oven secoven/'sections together. V

3.- A machine for making pastry, compristions, a plurality of mutually registering mold sections seated removably. in the oven l sections, a track-for the 'oven sections, means for reciprocating the-'oven'se'etions on the track, and heating means seated in the oven sections.

4. A machine'for making pastry, comprising separable oven "Sections, separable :mold sections detachably seated in the oven sections, means'for moving the oven sections toward and from each other, and, means for tying the oven sections'togethenf 5. A machine for making pastry, compris ingl two mutually registering and separable oven sections, 'mutually registering mold sections detachably seated inthe oven sections respectively, a ltrack supporting the o ven sections, means for movlng the oven sectlons to'and fromeach otheron the 'track, and' pendent arms Which 'are carried 'by the frame and are adapted to engage the oven sections and to hold them together. In testimony whereof, I. hereunto subscribe my name :inthe presence. of two Witnesses.

i v lLEE C. SHARP.

Witnesses: v a 'f "L. G. THoMrsoN,

WILLARD EDDY. 

